SEEDS. 



115 



PLATE XLVIII 



te 



FIG. 58. Powdered Areca Nuts ( x 240) 



alb, Cells of the endosperm with very thick walls and large pits. 



fp, Cells from the part of the pericarp adhering to the seeds. 



I, Bast tissue from the fibre-vascular bundles. 



pr, Dark brown pitted cells from the ruminations. 



sc, Sclerenchymatous cells of seed-coat, varying in size and shape. 



te, Outer layer of seed-coat. 



ti, Inner layer of same. 



v, Fragments of vessels. 



